Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!gem.mps.ohio-state.edu!uakari.primate.wisc.edu!uflorida!haven!adm!smoke!floyd From: floyd@smoke.BRL.MIL (Floyd C. Wofford) Newsgroups: comp.dsp Subject: Re: Hartley xform Message-ID: <11261@smoke.BRL.MIL> Date: 11 Oct 89 17:27:22 GMT References: <1115@cernvax.UUCP> Reply-To: floyd@brl.arpa (Floyd C. Wofford) Organization: Ballistic Research Laboratory Lines: 10 In article <1115@cernvax.UUCP> hjm@cernvax.UUCP (Hubert Matthews) writes: > >It sounds like Bracewell is patenting common knowledge. I don't know if it is common knowledge that the Fourier Transform of real data is Hermitian but Bracewell shows a pretty picture of that fact in his 1965 book "The Fourier Transform...". He has other pretty pictures of symmetry properties on page 15. I wonder if he knew that?